Bivalve definition zoology
Webbivalve: [adjective] being or having a shell composed of two valves. Webbivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front to back into left and right valves. The valves are connected to one another at a …
Bivalve definition zoology
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Webbivalve in British English. 1. Also: pelecypod, lamellibranch. any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels. 2. Webbi•valve. n. 1. any mollusk, as the oyster or mussel, of the class Bivalvia, having hinged lateral shells, a soft body enclosed by a mantle, sheetlike gills, and often a retractile foot. …
WebPhylum Mollusca is characterised by the pronounced development of musculature known as the foot. It is the locomotory organ in Molluscs. This organ is quite uncommon and strange to others. It is regarded as the remnant of the ‘dermo-muscular tube’ of the ancestral form whose ventral side became greatly developed as an adaptation for creep ... WebMay 18, 2024 · Bivalvia (bivalves; Pelecypoda, Lamelli-branchia; phylum Mollusca) A class of molluscs in which the body is laterally compressed and is enclosed between two oval …
WebBivalve definition, any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. See more. WebDec 30, 2011 · IQRA MUSHTAQ. Sophomore Anthropology/Biology double major at Loyola University. REU Mentors: Dr. Rüdiger Bieler (Curator, Zoology, Invertebrates) and Dr. Sid Staubach (Postdoctoral Fellow, Zoology, Invertebrates) Symposium Presentation Title: Evolution of the Labial Palps and Gills within the Palaeoheterodonta (Mollusca: Bivalvia). …
WebBivalvia ( / baɪˈvælviə / ), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell …
WebMay 8, 2024 · umbo (pl. umbones) A convex protuberance or swelling in the centre. In Brachiopoda and Bivalvia, the first part of the shell to be formed; it occurs at the posterior of each valve in brachiopods and forms the dorsal part of the shell in bivalves. A Dictionary of Zoology MICHAEL ALLABY. elegie by rachmaninoffWebfunction in bivalve nourishment. In bivalve: Internal features. The paired labial palps in the mantle cavity are used in feeding. The outer palp on each side bears a long, extensible proboscis with a ciliated groove that collects organic material, which is then sorted by the inner pair and outer pair of palps. Certain particles are… Read More elegi remix english lyricsWebcephalization: [noun] a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head. football philosophy t shirtsWebBivalves are distinguished from other molluscs by being having laterally compressed bodies encased in two shells (valves) that are held together by a dorsal hinge ligament (6) that causes the valves to open ventrally. The valves are drawn together by a pair of anterior (2) and posterior (8) adductor muscles, which are the parts of edible ... football phoneWebKingdom Animalia animals. Class Bivalvia. Species Calyptogena magnifica. Calyptogena magnifica: information (1) Calyptogena magnifica: pictures (1) Species Chlamydoconcha … football phone nfl cowboys logo used auctionWebbivalve in American English. (ˈbaɪˌvælv ) noun. 1. any of a class (Bivalvia) of mollusks, including mussels and clams, having a shell consisting of two valves hinged together. adjective. 2. having a shell of two valves hinged together. : also ˈbiˌvalved. football pes 2020 vs fifa 20Webbivalve - WordReference English dictionary, questions, discussion and forums. All Free. WordReference.com Online Language Dictionaries. English Dictionary bivalve ... elegir disco arranque windows 10